Description

In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted "bin" keys. Existing files could be overwritten depending on the current user permission set.

Remediation

References

https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023

https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7

https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/

https://access.redhat.com/errata/RHSA-2020:0475

https://snyk.io/vuln/SNYK-JS-YARN-537806%2C

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBI/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5/

Related Vulnerabilities

CVE-2023-42794 Vulnerability in maven package org.apache.tomcat:tomcat

CVE-2022-0671 Vulnerability in maven package org.eclipse.lemminx:lemminx-parent

CVE-2019-19729 Vulnerability in npm package bson-objectid

CVE-2022-26477 Vulnerability in maven package org.apache.systemds:systemds

CVE-2020-28446 Vulnerability in npm package ntesseract

Severity

High

Classification

CWE-59 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Tags

Exploit Third Party Advisory Patch